Method for controlling routing query of IMS user and IMS network

A routing and user technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problem of inability to distinguish the called party and analyze the route, and inability to distinguish the source of the IMS user, so as to achieve the same effect of dialing experience.

Active Publication Date: 2012-04-04
CHINA TELECOM CORP LTD
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  • Claims
  • Application Information

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Problems solved by technology

In IMS, the function of finding the route is performed by the S-CSCF, which can only find the route according to the called number, and cannot distinguish the source accor

Method used

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  • Method for controlling routing query of IMS user and IMS network
  • Method for controlling routing query of IMS user and IMS network
  • Method for controlling routing query of IMS user and IMS network

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Embodiment Construction

[0048] The purpose of the present invention is to provide a method for controlling IMS user routing inquiry. Wherein, the CIC parameter is an operator identification code. During use abroad, calls initiated by users of different operators are routed to the operator to which the user belongs according to this parameter. In the present invention, the principle that the CIC parameter can be used to distinguish routing addressing according to different types of IMS users can be used to distinguish between calls ENUM, ENUM, To determine the final analysis route of the called party.

[0049] figure 1 It shows a method for controlling IMS user routing query proposed by the present invention, including the following steps:

[0050] In step 101, in the user data on the MMTel AS, the type of the calling IMS user is confirmed according to whether the operator's pre-selected parameters are configured or not, and whether the CIC parameter is added to the called number prefix is ​​configu...

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Abstract

The invention discloses a method for controlling the routing query of IMS (IP Multimedia Subsystem) user and an IMS network. The method comprises the following steps: a user signs primary service of operators on MMTel AS, judges whether CIC parameter is added to the configuration number prefix, and judges whether the CIC parameter configured on the SCSCF (Servicing-CSCF) inquires ENUM(Telephone Number Mapping); a fixed network user initiates a call, and the call is triggered to the MMTel AS through the SCSCF; the MMTel AS judges whether to add the CIC parameter according to the prefix of the called number; the calling message is transmitted to the SCSCF; the SCSCF determines whether to inquire ENUM according to whether the CIC parameter is added to calling message, if the configuration is not to inquire the ENUM, the SCSCF directly quits the calling routing out of the IMS area and continues the calling through a traditional fixed network; if the configuration inquires the ENUM, the SCSCF determines the final call continuing router according to the query result of the ENUM. The invention realizes different routing queries according to the different IMS users who access through AGCF (Access Gateway Control Function) and P-CSCF (Proxy-CSCF).

Description

technical field [0001] The invention relates to a method for controlling IMS user routing inquiry and an IMS network. Background technique [0002] In the IMS, different users are accessed from the P-CSCF and AGCF respectively, and the services implemented by these users are different. The users connected by the AGCF need to complete the transformation of the fixed network, so they need to inherit the original PSTN services, and there is no multimedia service, so Routing can be intercommunicated through MGCF and PSTN, inheriting the original PSTN routing principles; while P-CSCF is mainly for users accessing multimedia, and needs to intercommunicate according to IMS standards. In IMS, the function of finding the route is performed by the S-CSCF, which can only find the route according to the called number, and cannot distinguish the source according to the source of the IMS user, that is, the called party cannot be distinguished according to different types of calling IMS us...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04W40/00
Inventor 张谋总梁鸿生王福荣王冬玲
Owner CHINA TELECOM CORP LTD
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